/Engine/Plugins/Experimental/MotoSynth/Source/MotoSynth/Public/MotoSynthPreset.h
FMotoSynthEnginePreviewerClass used to render the moto synth audio in the content browser. Used to preview the moto synth engine without running PIE.
class FMotoSynthEnginePreviewer : public [ISubmixBufferListener](API\Runtime\Engine\ISubmixBufferListener)